Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6187076 | Fluidized bed reduction method, fluidized bed reduction reactor, and fluidized bed reduction system | Takayuki Sugahara, Ryoichi Hata, Kenji Ohiraki, Gilbert Y. Whitten | 2001-02-13 |
| 5674308 | Spouted bed circulating fluidized bed direct reduction system and method | David C. Meissner, Kimio Sugiyama, Isao Kobiyashi, Kenji Ohiraki | 1997-10-07 |